If your company has a BYOD policy, it can be extremely difficult to manage the apps that are installed and used on users’ own devices that are used for work. These apps can often help improve productivity and collaboration, but they can also introduce many new security risks.
User installed apps have a couple of main drawbacks. One is that employees are likely to download popular apps that are used by millions of other users. This makes them an attractive target for hackers, purely because of the potential impact that a successful attack could have. These apps are usually easy to use and make sharing information simple, making them attractive for users, but are also typically less secure than enterprise-level apps.